<?xml version="1.0" encoding="UTF-8" ?>
<?xml-stylesheet type="text/xsl" href="https://devzone.nordicsemi.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Cannot flash JTAG when in Secure DFU bootloader</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/65013/cannot-flash-jtag-when-in-secure-dfu-bootloader</link><description>Hi, 
 We are using SES on Windows to program a nrf52832 device with a SDK 16. 
 We are having problems with the Secure BLE DFU. We are able to perform the DFU on our devices from the bootloader and the main application. 
 The problem is that when we flash</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Wed, 19 Aug 2020 23:02:14 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/65013/cannot-flash-jtag-when-in-secure-dfu-bootloader" /><item><title>RE: Cannot flash JTAG when in Secure DFU bootloader</title><link>https://devzone.nordicsemi.com/thread/265424?ContentTypeID=1</link><pubDate>Wed, 19 Aug 2020 23:02:14 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:5d32cd6b-220c-4f31-ba14-513053ce109a</guid><dc:creator>dr9</dc:creator><description>&lt;p&gt;Recently ran into a similar situation.&amp;nbsp; Once the settings file was generated and merged with the bootloader (following instructions from step 2 in the link below), we were able to flash the main application from either SES or through DFU.&amp;nbsp; You will need to flash the merged hex file (Bootloader + settings) from nrfjprog after doing a chiperase.&lt;/p&gt;
&lt;p&gt;&lt;a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v16.0.0/background_dfu_firmware_image.html"&gt;infocenter.nordicsemi.com/.../background_dfu_firmware_image.html&lt;/a&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>